<template>
    <div class="icons">
        <swiper :options="swiperOption" ref="mySwiper">
            <swiper-slide v-for='(page,index) of pages' :key='index'>
                <div class="icon" v-for="item of page" :key='item.id'>
                    <div class="icon-img">
                        <img class="icon-img-content" :src="item.imgUrl" />
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
            </swiper-slide>
        </swiper>
    </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    iconList: Array
  },
  data () {
    return {
      swiperOption: {
        loop: false/* 支持循环轮播 */
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8) // 计算下标 如果0-7之间，是在第一页。如果是8以后就是第二页。
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'
@import '~styles/mixins.styl'
.icons >>> .swiper-container
    height 0
    padding-bottom 50%
.icons
    margin-top .1rem
.icon
    position relative
    overflow hidden
    width 25%
    padding-bottom 25%
    height 0
    float left
    .icon-img
        position absolute
        top 0
        left 0
        right 0
        bottom .44rem
        box-sizing border-box
        padding .1rem
        .icon-img-content
            height 100%
            display block
            margin 0 auto
    .icon-desc
        position absolute
        bottom 0
        right 0
        left 0
        height .44rem
        line-height .44rem
        text-align center
        color $iconColoe
        ellipsis()
</style>
